Tricon system AO card failure
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Hello everyone, the TRICON system hadn’t shown any faults before, but now, after testing the equipment, almost all of the AO cards have developed issues. Diagnosis: Voter flags mismatch. What is the cause of this? I hope the expert can tell me the reason.
The channel resistance was not shorted
First, use the ENDM diagnostic software to clear faults and reset soft faults. If it still exists, then check the wiring of the AO terminal block; the spare terminals must be shorted together. If there is still an alarm, then replace it with a backup AO card. After stopping the vehicle, try hot-plugging the faulty card to see.